fzf/shell/completion.zsh

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#!/bin/zsh
# ____ ____
# / __/___ / __/
# / /_/_ / / /_
# / __/ / /_/ __/
# /_/ /___/_/-completion.zsh
#
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# - $FZF_TMUX (default: 0)
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# - $FZF_TMUX_HEIGHT (default: '40%')
# - $FZF_COMPLETION_TRIGGER (default: '**')
# - $FZF_COMPLETION_OPTS (default: empty)
# To use custom commands instead of find, override _fzf_compgen_{path,dir}
if ! declare -f _fzf_compgen_path > /dev/null; then
_fzf_compgen_path() {
echo "$1"
command find -L "$1" \
-name .git -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
-a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
}
fi
if ! declare -f _fzf_compgen_dir > /dev/null; then
_fzf_compgen_dir() {
command find -L "$1" \
-name .git -prune -o -name .svn -prune -o -type d \
-a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
}
fi
###########################################################
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__fzfcmd_complete() {
[ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] &&
echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
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}
__fzf_generic_path_completion() {
local base lbuf compgen fzf_opts suffix tail fzf dir leftover matches
# (Q) flag removes a quoting level: "foo\ bar" => "foo bar"
base=${(Q)1}
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lbuf=$2
compgen=$3
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fzf_opts=$4
suffix=$5
tail=$6
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fzf="$(__fzfcmd_complete)"
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setopt localoptions nonomatch
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dir="$base"
while [ 1 ]; do
if [[ -z "$dir" || -d ${~dir} ]]; then
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leftover=${base/#"$dir"}
leftover=${leftover/#\/}
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[ -z "$dir" ] && dir='.'
[ "$dir" != "/" ] && dir="${dir/%\//}"
dir=${~dir}
matches=$(eval "$compgen $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" ${=fzf} ${=fzf_opts} -q "$leftover" | while read item; do
echo -n "${(q)item}$suffix "
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done)
matches=${matches% }
if [ -n "$matches" ]; then
LBUFFER="$lbuf$matches$tail"
fi
zle redisplay
typeset -f zle-line-init >/dev/null && zle zle-line-init
break
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fi
dir=$(dirname "$dir")
dir=${dir%/}/
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done
}
_fzf_path_completion() {
__fzf_generic_path_completion "$1" "$2" _fzf_compgen_path \
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"-m" "" " "
}
_fzf_dir_completion() {
__fzf_generic_path_completion "$1" "$2" _fzf_compgen_dir \
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"" "/" ""
}
_fzf_feed_fifo() (
command rm -f "$1"
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mkfifo "$1"
cat <&0 > "$1" &
)
_fzf_complete() {
local fifo fzf_opts lbuf fzf matches post
fifo="${TMPDIR:-/tmp}/fzf-complete-fifo-$$"
fzf_opts=$1
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lbuf=$2
post="${funcstack[2]}_post"
type $post > /dev/null 2>&1 || post=cat
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fzf="$(__fzfcmd_complete)"
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_fzf_feed_fifo "$fifo"
matches=$(cat "$fifo" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" ${=fzf} ${=fzf_opts} -q "${(Q)prefix}" | $post | tr '\n' ' ')
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if [ -n "$matches" ]; then
LBUFFER="$lbuf$matches"
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fi
zle redisplay
typeset -f zle-line-init >/dev/null && zle zle-line-init
command rm -f "$fifo"
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}
_fzf_complete_telnet() {
_fzf_complete '+m' "$@" < <(
command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0' |
awk '{if (length($2) > 0) {print $2}}' | sort -u
)
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}
_fzf_complete_ssh() {
_fzf_complete '+m' "$@" < <(
command cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}') \
<(command grep -oE '^[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | awk '{ print $1 " " $1 }') \
<(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
awk '{if (length($2) > 0) {print $2}}' | sort -u
)
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}
_fzf_complete_export() {
_fzf_complete '-m' "$@" < <(
declare -xp | sed 's/=.*//' | sed 's/.* //'
)
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}
_fzf_complete_unset() {
_fzf_complete '-m' "$@" < <(
declare -xp | sed 's/=.*//' | sed 's/.* //'
)
}
_fzf_complete_unalias() {
_fzf_complete '+m' "$@" < <(
alias | sed 's/=.*//'
)
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}
fzf-completion() {
local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
setopt localoptions noshwordsplit noksh_arrays noposixbuiltins
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# http://zsh.sourceforge.net/FAQ/zshfaq03.html
# http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags
tokens=(${(z)LBUFFER})
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if [ ${#tokens} -lt 1 ]; then
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zle ${fzf_default_completion:-expand-or-complete}
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return
fi
cmd=${tokens[1]}
# Explicitly allow for empty trigger.
trigger=${FZF_COMPLETION_TRIGGER-'**'}
[ -z "$trigger" -a ${LBUFFER[-1]} = ' ' ] && tokens+=("")
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tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
# Kill completion (do not require trigger sequence)
if [ $cmd = kill -a ${LBUFFER[-1]} = ' ' ]; then
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fzf="$(__fzfcmd_complete)"
matches=$(ps -ef | sed 1d | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-50%} --min-height 15 --reverse $FZF_DEFAULT_OPTS --preview 'echo {}' --preview-window down:3:wrap $FZF_COMPLETION_OPTS" ${=fzf} -m | awk '{print $2}' | tr '\n' ' ')
if [ -n "$matches" ]; then
LBUFFER="$LBUFFER$matches"
fi
zle redisplay
typeset -f zle-line-init >/dev/null && zle zle-line-init
# Trigger sequence given
elif [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
d_cmds=(${=FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir})
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[ -z "$trigger" ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}}
[ -z "${tokens[-1]}" ] && lbuf=$LBUFFER || lbuf=${LBUFFER:0:-${#tokens[-1]}}
if eval "type _fzf_complete_${cmd} > /dev/null"; then
eval "prefix=\"$prefix\" _fzf_complete_${cmd} \"$lbuf\""
elif [ ${d_cmds[(i)$cmd]} -le ${#d_cmds} ]; then
_fzf_dir_completion "$prefix" "$lbuf"
else
_fzf_path_completion "$prefix" "$lbuf"
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fi
# Fall back to default completion
else
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zle ${fzf_default_completion:-expand-or-complete}
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fi
}
[ -z "$fzf_default_completion" ] && {
binding=$(bindkey '^I')
[[ $binding =~ 'undefined-key' ]] || fzf_default_completion=$binding[(s: :w)2]
unset binding
}
zle -N fzf-completion
bindkey '^I' fzf-completion